I grew up in a rural area and currently live in a suburb… They are worlds apart in terms of:

* Proximity to (non-farm) work * Available public/private schools * Municipal amenities like parks and libraries * Basic retail services - groceries, clothing stores, etc. * Social activities/clubs

In short, other than needing a car to get around both places, they don’t have much in common at all.

I would say suburbs are smaller communities next to a major city. Most inhabitants usually work in the city, and the suburb is clustered around a center with the town-hall, activities like an ice-cream shop, and a mass-transit connection to the city center. They also have an easy connection to a major road/highway taking you to the city. The connection to the city is easy and commuting expected. The suburb is similar to a town in a sense that it is self-sufficient with a school, pharmacy and one, two restaurants, but with few cultural activities due to the competition from the city. Inhabitants spend most of their time in the suburb and children grow up there, but due to easy access to the city people living in the suburb often go into the city to shop, go into a cinema, meet friends or into a museum/theatre. The symbiosis with the city differentiate the suburb to an adjacent smaller town.